import time
import machine

rojo1=machine.Pin(2, machine.Pin.OUT)
rojo2=machine.Pin(7, machine.Pin.OUT)
verde1=machine.Pin(4, machine.Pin.OUT)
verde2=machine.Pin(9, machine.Pin.OUT)

def tintineo(n):
    if n==1:
        for _ in range(10):
            verde1.on()
            time.sleep(0.3)
            verde1.off()
            time.sleep(0.3)
    
    if n==2:
        for _ in range(10):
            verde2.on()
            time.sleep(0.3)
            verde2.off()
            time.sleep(0.3)

while True:
    rojo1.on()
    verde1.off()
    rojo2.off()
    verde2.on()

    time.sleep(4)
    tintineo(2)

    rojo1.off()
    verde1.on()
    rojo2.on()
    verde2.off()
    
    time.sleep(4)
    tintineo(1)